DE2260618C3 - Alarmeinrichtung - Google Patents

Alarmeinrichtung

Info

Publication number
DE2260618C3
DE2260618C3 DE2260618A DE2260618A DE2260618C3 DE 2260618 C3 DE2260618 C3 DE 2260618C3 DE 2260618 A DE2260618 A DE 2260618A DE 2260618 A DE2260618 A DE 2260618A DE 2260618 C3 DE2260618 C3 DE 2260618C3
Authority
DE
Germany
Prior art keywords
signal
detector
alarm
transistor
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE2260618A
Other languages
German (de)
English (en)
Other versions
DE2260618B2 (de
DE2260618A1 (de
Inventor
Harold Chicago Ill. Eisenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Milwaukee Resistor Corp
Original Assignee
Milwaukee Resistor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Milwaukee Resistor Corp filed Critical Milwaukee Resistor Corp
Publication of DE2260618A1 publication Critical patent/DE2260618A1/de
Publication of DE2260618B2 publication Critical patent/DE2260618B2/de
Application granted granted Critical
Publication of DE2260618C3 publication Critical patent/DE2260618C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Fixing For Electrophotography (AREA)
DE2260618A 1971-12-13 1972-12-12 Alarmeinrichtung Expired DE2260618C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20746671A 1971-12-13 1971-12-13

Publications (3)

Publication Number Publication Date
DE2260618A1 DE2260618A1 (de) 1973-06-20
DE2260618B2 DE2260618B2 (de) 1980-12-11
DE2260618C3 true DE2260618C3 (de) 1981-09-24

Family

ID=22770666

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2260618A Expired DE2260618C3 (de) 1971-12-13 1972-12-12 Alarmeinrichtung

Country Status (7)

Country Link
US (1) US3754222A (ja)
JP (1) JPS566039B2 (ja)
CA (1) CA964759A (ja)
DE (1) DE2260618C3 (ja)
FR (1) FR2163463B1 (ja)
GB (1) GB1414505A (ja)
IT (1) IT973963B (ja)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140390U (ja) * 1974-05-02 1975-11-19
US3944934A (en) * 1974-11-21 1976-03-16 Milwaukee Resistor Corporation False triggering prevention circuit
US4097853A (en) * 1976-09-20 1978-06-27 Milwaukee Resistor Corporation Means for distinguishing motion from noise in an intrusion alarm system
US4129856A (en) * 1976-11-15 1978-12-12 Contronic Controls Limited Filter system and method for intrusion alarm
US4107684A (en) * 1977-05-02 1978-08-15 E-Systems, Inc. Phase locked detector
JPS61941A (ja) * 1984-06-13 1986-01-06 Matsushita Electric Ind Co Ltd 半導体レ−ザ光ピツクアツプ装置
GB2302406B (en) * 1995-06-19 1999-08-25 Bright Star Entpr Ltd Apparatus for detecting the breaching of a closed environment
US6040765A (en) * 1998-01-23 2000-03-21 Armatron International, Inc. Obstacle detection system built-in test method and apparatus
US7245315B2 (en) * 2002-05-20 2007-07-17 Simmonds Precision Products, Inc. Distinguishing between fire and non-fire conditions using cameras
US7256818B2 (en) * 2002-05-20 2007-08-14 Simmonds Precision Products, Inc. Detecting fire using cameras
AU2003251302A1 (en) * 2002-05-20 2003-12-22 Simmonds Precision Products, Inc. Video detection verification system
US7280696B2 (en) * 2002-05-20 2007-10-09 Simmonds Precision Products, Inc. Video detection/verification system
US7535351B2 (en) 2006-07-24 2009-05-19 Welles Reymond Acoustic intrusion detection system
US9997035B1 (en) 2017-03-01 2018-06-12 Samuel L. Thomasson Acoustic security system and method
CN113450537B (zh) * 2021-06-25 2023-05-30 北京小米移动软件有限公司 跌倒检测方法、装置、电子设备和存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25100A (en) * 1859-08-16 de fokest
US2066156A (en) * 1929-04-25 1936-12-29 Muffly Glenn Signaling means
US2541066A (en) * 1943-11-24 1951-02-13 Sperry Corp Object detecting and warning system and method
US2791756A (en) * 1946-06-11 1957-05-07 Leon G S Wood Target doppler indicator
USRE25100E (en) * 1954-04-13 1961-12-19 chapin
US3394342A (en) * 1965-09-13 1968-07-23 Walker Philip Hulme Ultrasonic object detection systems
DE1791060C3 (de) * 1968-09-05 1975-08-14 Alois Zettler Elektrotechnische Fabrik Gmbh, 8000 Muenchen Elektroakustische Anlage
US3582870A (en) * 1969-03-10 1971-06-01 Normda Ind Inc Ultrasonic detection system
US3585577A (en) * 1969-06-12 1971-06-15 Southwest Res Inst Ultrasonic transceiver

Also Published As

Publication number Publication date
US3754222A (en) 1973-08-21
CA964759A (en) 1975-03-18
FR2163463A1 (ja) 1973-07-27
FR2163463B1 (ja) 1977-08-26
JPS4866795A (ja) 1973-09-12
GB1414505A (en) 1975-11-19
DE2260618B2 (de) 1980-12-11
JPS566039B2 (ja) 1981-02-09
IT973963B (it) 1974-06-10
DE2260618A1 (de) 1973-06-20

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Legal Events

Date Code Title Description
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee